The branch stable/12 has been updated by mav:
URL:
https://cgit.FreeBSD.org/src/commit/?id=7cc6daf122e53859ba786716090d1d536249a793
commit 7cc6daf122e53859ba786716090d1d536249a793
Author: Alexander Motin <m...@freebsd.org>
AuthorDate: 2021-01-24 18:58:29 +0000
Commit: Alexander Motin <m...@freebsd.org>
CommitDate: 2021-02-23 00:33:19 +0000
Exclude reserved iSCSI Target Transfer Tag.
RFC 7143 (11.7.4):
The Target Transfer Tag values are not specified by this protocol,
except that the value 0xffffffff is reserved and means that the
Target Transfer Tag is not supplied.
MFC after: 1 month
---
sys/cam/ctl/ctl_frontend_iscsi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sys/cam/ctl/ctl_frontend_iscsi.c b/sys/cam/ctl/ctl_frontend_iscsi.c
index dfe1a347844b..9b55574590ff 100644
--- a/sys/cam/ctl/ctl_frontend_iscsi.c
+++ b/sys/cam/ctl/ctl_frontend_iscsi.c
@@ -2659,6 +2659,10 @@ cfiscsi_datamove_out(union ctl_io *io)
target_transfer_tag =
atomic_fetchadd_32(&cs->cs_target_transfer_tag, 1);
+ if (target_transfer_tag == 0xffffffff) {
+ target_transfer_tag =
+ atomic_fetchadd_32(&cs->cs_target_transfer_tag, 1);
+ }
cdw = cfiscsi_data_wait_new(cs, io, bhssc->bhssc_initiator_task_tag,
&target_transfer_tag);
if (cdw == NULL) {
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